This Pedal is currently available.
LowPass voltage-controlled filter (VCF)
The Touellskouarn “Sil Kontrollet” tabletop module is a LowPass voltage-controlled filter (VCF) The filter is a 12dB per octave low-pass filter that can be self-oscillated, this way it can produce a sine wave with V/Oct tracking capability. This filter has a unique and distinctive sound, characterized by its aggressive resonance and its ability to self-oscillate. Cutoff can be cv controlled. The enclosure is all aluminium and the circuit is made with quality components such as Nichicon/Panasonic caps and alpha pots. The module is powered thru a 2,1mm negative pin power jack, compatible with Boss and Ibanez standard power supplies.
Features
- 12dB lowpass filter in OTA design
- Large knobs for cutoff and resonance
- Input/output
- CV control for cutoff
- Nichicon/Panasonic caps
- Alpha-Potis
- Compatible with standard Boss and Ibanez power supplies (not included)
https://www.touellskouarn.fr/stompboxes/sil-kontrollet-gant-ar-voltadur
These merchants probably sell this module. Huh?